FKIE_CVE-2012-4144

Vulnerability from fkie_nvd - Published: 2012-08-06 16:55 - Updated: 2026-04-29 01:13
Severity
Summary
Opera before 12.01 on Windows and UNIX, and before 11.66 and 12.x before 12.01 on Mac OS X, does not properly escape characters in DOM elements, which makes it easier for remote attackers to bypass cross-site scripting (XSS) protection mechanisms via a crafted HTML document.
References
cve@mitre.orghttp://www.opera.com/docs/changelogs/mac/1166/
cve@mitre.orghttp://www.opera.com/docs/changelogs/mac/1201/
cve@mitre.orghttp://www.opera.com/docs/changelogs/unix/1201/
cve@mitre.orghttp://www.opera.com/docs/changelogs/windows/1201/
cve@mitre.orghttp://www.opera.com/support/kb/view/1025/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.opera.com/docs/changelogs/mac/1166/
af854a3a-2127-422b-91ae-364da2661108http://www.opera.com/docs/changelogs/mac/1201/
af854a3a-2127-422b-91ae-364da2661108http://www.opera.com/docs/changelogs/unix/1201/
af854a3a-2127-422b-91ae-364da2661108http://www.opera.com/docs/changelogs/windows/1201/
af854a3a-2127-422b-91ae-364da2661108http://www.opera.com/support/kb/view/1025/Vendor Advisory
Impacted products
Vendor Product Version
opera opera_browser *
opera opera_browser 12.00
linux linux_kernel *
microsoft windows *
opera opera_browser *
opera opera_browser 10.00
opera opera_browser 10.00
opera opera_browser 10.00
opera opera_browser 10.00
opera opera_browser 10.01
opera opera_browser 10.10
opera opera_browser 10.10
opera opera_browser 10.11
opera opera_browser 10.50
opera opera_browser 10.50
opera opera_browser 10.50
opera opera_browser 10.51
opera opera_browser 10.52
opera opera_browser 10.52
opera opera_browser 10.52
opera opera_browser 10.53
opera opera_browser 10.53
opera opera_browser 10.53
opera opera_browser 10.54
opera opera_browser 10.60
opera opera_browser 10.60
opera opera_browser 10.61
opera opera_browser 10.62
opera opera_browser 10.63
opera opera_browser 11.00
opera opera_browser 11.00
opera opera_browser 11.01
opera opera_browser 11.10
opera opera_browser 11.10
opera opera_browser 11.11
opera opera_browser 11.50
opera opera_browser 11.50
opera opera_browser 11.51
opera opera_browser 11.52
opera opera_browser 11.52.1100
opera opera_browser 11.60
opera opera_browser 11.60
opera opera_browser 11.61
opera opera_browser 11.62
opera opera_browser 11.64
opera opera_browser 12.00
opera opera_browser 12.00
apple mac_os_x *
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Opera before 12.01 on Windows and UNIX, and before 11.66 and 12.x before 12.01 on Mac OS X, does not properly escape characters in DOM elements, which makes it easier for remote attackers to bypass cross-site scripting (XSS) protection mechanisms via a crafted HTML document."
    },
    {
      "lang": "es",
      "value": "El navegador Opera anterior a v12,01 en Windows y UNIX, y anterior a v11.66, v12.x y v12.01 en Mac OS X, no se trata correctamente los caracteres de escape de los elementos DOM, lo que hace que sea m\u00e1s f\u00e1cil para los atacantes remotos evitar vulnerabilidades de ejecuci\u00f3n de secuencias de comandos en sitios cruzados (XSS) a trav\u00e9s de los mecanismos de protecci\u00f3n un documento HTML dise\u00f1ado"
    }
  ],
  "id": "CVE-2012-4144",
  "lastModified": "2026-04-29T01:13:23.040",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ]
  },
  "published": "2012-08-06T16:55:07.150",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://www.opera.com/docs/changelogs/mac/1166/"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.opera.com/docs/changelogs/mac/1201/"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.opera.com/docs/changelogs/unix/1201/"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.opera.com/docs/changelogs/windows/1201/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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      ],
      "url": "http://www.opera.com/support/kb/view/1025/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.opera.com/docs/changelogs/mac/1166/"
    },
    {
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      "url": "http://www.opera.com/docs/changelogs/mac/1201/"
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      "url": "http://www.opera.com/docs/changelogs/unix/1201/"
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "nvd@nist.gov",
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}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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Detection rules are retrieved from Rulezet.